studyup.jp - dns.ninja
studyup.jp
jp
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | z.dns.jp ⭐ | ||||||
| NS | a.dns.jp | ||||||
| NS | b.dns.jp | ||||||
| NS | c.dns.jp | ||||||
| NS | d.dns.jp | ||||||
| NS | e.dns.jp | ||||||
| NS | f.dns.jp | ||||||
| NS | g.dns.jp | ||||||
| NS | h.dns.jp | ||||||
| SOA | z.dns.jproot@dns.jp serial=1785396602 | ||||||
Subdomains
www.studyup.jp |
Same first word
Similar names
DNS History
15 records (9 active, 6 former)
●NSns1.xbiz.ne.jp2026-03-13 → 2026-07-30 · 3 obs
● 2026-03-13 04:14:32
● 2026-07-30 07:43:48
●NSns2.xbiz.ne.jp2026-03-13 → 2026-07-30 · 3 obs
● 2026-03-13 04:14:32
● 2026-07-30 07:43:48
●NSns3.xbiz.ne.jp2026-03-13 → 2026-07-30 · 3 obs
● 2026-03-13 04:14:32
● 2026-07-30 07:43:48
○NSuns01.lolipop.jp2015-08-08 → 2017-03-23 · 4 obs
● 2017-03-23 01:32:58
○ 2026-03-13 04:14:32
○ 2026-07-30 07:43:48
○NSuns02.lolipop.jp2015-08-08 → 2017-03-23 · 4 obs
● 2017-03-23 01:32:58
○ 2026-03-13 04:14:32
○ 2026-07-30 07:43:48
●MXalt1.aspmx.l.google.com2026-03-13 → 2026-07-30 · 3 obs
● 2026-03-13 04:14:32
● 2026-07-30 07:43:48
●MXalt2.aspmx.l.google.com2026-03-13 → 2026-07-30 · 3 obs
● 2026-03-13 04:14:32
● 2026-07-30 07:43:48
●MXalt3.aspmx.l.google.com2026-03-13 → 2026-07-30 · 3 obs
● 2026-03-13 04:14:32
● 2026-07-30 07:43:48
●MXalt4.aspmx.l.google.com2026-03-13 → 2026-07-30 · 3 obs
● 2026-03-13 04:14:32
● 2026-07-30 07:43:48
●MXaspmx.l.google.com2026-03-13 → 2026-07-30 · 3 obs
● 2026-03-13 04:14:32
● 2026-07-30 07:43:48
○MXmx01.lolipop.jp2015-08-08 → 2017-03-23 · 4 obs
● 2017-03-23 01:32:58
○ 2026-03-13 04:14:32
○ 2026-07-30 07:43:48
○A157.7.107.392016-04-19 → 2017-03-23 · 5 obs
● 2016-04-19 17:28:20
● 2017-03-23 01:32:58
○ 2026-03-13 04:14:32
○ 2026-07-30 07:43:48
○A162.43.105.1212026-03-13 → 2026-03-13 · 4 obs
● 2026-03-13 04:14:32
○ 2026-07-05 02:14:14
○ 2026-07-30 07:43:48
○A203.189.109.1662015-08-08 → 2016-01-04 · 4 obs
● 2016-01-04 16:22:46
○ 2016-04-19 17:28:20
○ 2026-07-30 07:43:48
●A85.131.214.132026-07-05 → 2026-07-30 · 3 obs
● 2026-07-05 02:14:14
● 2026-07-30 07:43:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| studyup.jp | ns3.xbiz.ne.jp, ns2.xbiz.ne.jp, ns1.xbiz.ne.jp | 3 records |
✅ Authoritative Response
Server:157.112.182.247
NS records: ns3.xbiz.ne.jp, ns2.xbiz.ne.jp, ns1.xbiz.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for studyup.jp (unsigned zone)
⏱️ Timing
Total: 902ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 85.131.214.13 |
| NS | 3 | ns2.xbiz.ne.jp, ns1.xbiz.ne.jp... |
| MX | 5 | ASPMX.L.GOOGLE.COM (pri: 1), ALT2.ASPMX.L.GOOGLE.COM (pri: 5)... |
| TXT | 1 | v=spf1 +a:sv932.xbiz.ne.jp +a:studyup.jp |
| SOA | 1 | ns1.xbiz.ne.jp root.xbiz.ne.jp |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns3.xbiz.ne.jp, ns2.xbiz.ne.jp, ns1.xbiz.ne.jp)
Analysis
Hierarchy
studyup.jp serves as the parent of www.studyup.jp.
IP Addresses
studyup.jp points to a single IP number: 85.131.214.13.
Other host names — www.gamf.jp, shiyo.co.jp, ykomon.com and gamf.jp — share IP numbers with studyup.jp.
Name Servers
studyup.jp is delegated to three name servers: ns1.xbiz.ne.jp, ns2.xbiz.ne.jp and ns3.xbiz.ne.jp.
studyup.jp has at least partial name server overlap with other domains, such as ec-akinai.com, jimopon.com, shibasun.jp and two others.
ns1.xbiz.ne.jp directs to 157.112.182.247 and ns2.xbiz.ne.jp directs to 35.76.79.244; each host name points to exactly one IP number.
Mail Servers
Mail for studyup.jp is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.
studyup.jp shares mail servers — at least in part — with other domains, including ns500671.ns500754.ns500671.ns500688.ns500704.ns500688.ns500678.ns500678.ns500666.ns500291.ns500291.ns500131.lustychickser.com, ns500698.ns500759.ns500759.ns500758.ns500735.ns500735.ns500698.ns500576.ns500698.ns500619.ns500576.ns500619.ns500619.trackreceptor.com, ns500699.ns500699.ns500699.ns500699.ns500693.ns500693.ns500588.ns500588.ns500693.ns500693.ns500588.ns500683.ns500632.ns500588.ns500588.ns500578.ns500110.dtrkdll.com and two others.
These mail servers are frequently paired with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.
Host names with two IP numbers:
aspmx.l.google.com points to 172.253.63.26 and 2607:f8b0:4004:c1d::1a.
alt1.aspmx.l.google.com points to 108.177.123.26 and 2800:3f0:4003:c0f::1b.
alt2.aspmx.l.google.com points to 172.253.116.26 and 2a00:1450:400b:c02::1b.
alt3.aspmx.l.google.com points to 192.178.223.27 and 2a00:1450:4009:c0f::1b.
alt4.aspmx.l.google.com points to 172.253.157.27 and 2a00:1450:400c:c23::1a.